Pen-clamp for ruling-machines



G. VAN WORMER. PEN CLAMP FOR RULING MACHINES. APPLICATION FILED SEPT. l6. I918. RENEWED MAY E9. I919.

Patented Sept. ,2, 1919.

\ 111g pressure UNITED STATES PATENT OFFIQE.

GEORGE VAN. WORMER, OF HAMILTON, OHIO, ASSIGNOR OF: ONEwHALF' TO JOHN'- KAEFER,OF HAMILTON; OHIO.

. Specification; of Letters Patent;

Patented Sept. 2, 1919.

Application filed September 16, 1918, Serial No. 254,265. Renewed-May 19, 1919. Serial No. 298,320..

To all whom itmag concern Be it known that I, GEORGE'VAN W'onMnn',

a citizen of the United States, and residing;

Myinvention relates t0 3 P for ruling machines and more particularly to the mechanism .for distributing an equalized clamping pressure along the entire length of the clamp jaws.

An object of theinvention is to provide a pen clamp in which'the jaws are closed'toward each other under an equalized clamp for their entire len' 'th, uniformly clamping all of the pens Lo aseries placed between the jaws.

' Another obj ectcof the invention is to strucprior patent issuedtome February 27, 1917,

each as arectangularplate, and for their sure, and possess rigidity throughout the Reference is to be had to the accompanying drawing included as a part ofthls specification, in which like characters of reference denote correspondingparts throughout the several views ofwhich;

Figure 1 is a plan view. j

Fig. 2 is a plan'view of oneiofthe jaw. members looking at its inner face. I

Fig. 3isa view similar to Fig: 2 of the opposite jaw member.

Fig. 4 is a sectionon lined-4, Fig: 1. Fig." 5 is a irightliand elevation. Fig. 6 is a section on line 66, Fig.1. Fig. 7 is a detailed rear elevation of the adjusting screw showing its balland socket connection with "the wedge rodi The clamp'comprises two jaws 1 and- 2,

particular use as a ruling pen holding clamp are usually of considerablelength for hold ing a large number of pens to rule large sheets of paper. It is therefore essential for the jaws tohave a uniformclamping presentire length for rigidly setting and securing all of the pens of a series. Both' jaws have rounded forward edges and the rear edge of jaw l extends beyond the jaw 2 to provide means for connecting the clamp to a cross-beam of a ruling machine.

The jaw 1,, being of wood, has its inner surface at'its biting edge, and its entire outer ink.

avoiding their. becoming impregnated with Anlnk mpregnated clamp will destroy the tint if achange in'tlie color of' ink'is-made. An a-nchor'strip or rod5', half" rounded in sectlon, 1s recessed lnto the inner surface of" the jaw 1 longitudinally and'preferably extendsthe entire length of the jaw, with the plane surface of the strip flush with the lnner'face'of the jaw; The. strip 5 is rigidly secured to the jaw 1 by screws, providing an anchor foraseries of stirrups 6, andalso a reinforcement for the jaw. The stirrups 6 are spaced apart a suitable distance and are of a number depending upon the length of the clamp, each stirrup'being horedfla't each end,-0ne end pivotally engaging with the anchor. strip 5 and the other end projecting through a slot in the jaw 2 beyond the outer'surface of said jaw, for engagement byacam' or wedge rod 7. The rod 7 extends longitudinally of the jaw 2 and through the bore of the exposed ends .of all of the stirrups of the series. The jaw 2'is counter recessed at'the stirrup locations to accommodate for the ends oftlie stirrups" which are rounded to allow the stirrup to swivel free uponthe anchor rod j The aw 2*has a bearing plate 8 recessed into its outer surface longitudinally along the line of the cam or wedgerod? engagement apertured as the jaw to receive the stirrups therethrough.

The cam or wedge rod 7'operates upon the bearingplate and stirrups, andin principle is substantially the same asshown and describedin my prior patent issued to me as aforesaid. excepting that the stirrups in their pivotal connection with the anchor rod 5 ofthejaw 1, swing or movewitli the. jaw" Qbringing all thestirrups into alincment, and will not'impart any resisting or twistingstrains to the wedge 01' camrod to destroy amniform clamping pressure. he rod"7"has a longitudinal plane surface i) forming a cam or wedge edge 10 engaging the bearing plate 8, when the rod is swiveled,

These 60 and presenting the plane, surface oif the" rod at angles to the bearing plate TheLrOd 7 by reason of its plane surface, brings its circular periphery shghtly eccen trio to the face of the bearing plate 8,

' erting'a Wedginp; pressure agai'nst'the jaw 2 in s-WiNelingtherod either to the right orileft. This actionforces the twojaws form clamping, "pressure along entire thickness.

together. The stirr ups in a series ar'ejdisr tl'ibuted along the'rodzftoestablishfla uni-f lengthlof the jaws To one end of the rod 7,f pro ect1ng fixed for rocking the rod. The'free end of] the arm is tubular'rand slotted to provide a] socket for ,theba11 end 12 of the adjusting;

V screw; 13, p the adjusting screw 13,, havingv threaded engagement throughja boss 14 ex tending from an'angle plate 1 5 seeured to? the endof the'jaw 1.' Onelimbet the angle plate reaches across theend of thejaw 2, and forms a journal for the 'IQd iTu'rning the ELdJU StIHPI screwsw n'gs the arm 11 rocking rod 7. The ballend. of the ear.

-13 normally is. confined within the long gi v tudinal socket of'th-e arm 11 a its diam-' the neck portion 16 0f the screwcpi'ojectsg The socket] of'thefarm. 11 however, is open at the, end to permit the ball end of the screw to be withdrawn from".thGsocket for disen a in 'fthe arts ada tine-thegrodtobe.

b b h p I H 4 'WithdIfa-Wn longitudinally fro its engage/ ment withthe stirrups'for disassen ilbling the -parts. Theparts provide a separable,'u11i- E versal 1011'1tproduc1ng an ant-I-fr ct1on,-p1votal "and slipping connection freely "aceom modat ng for the var ationsof the angle be tween the. armrandscrew in jaw; clamping and "unclamp ng motions, andunon-Js e are-e,;-

ble Within the normal degree of mo vementh either direction .al djis aided in one directionagainstlthe jaw'l, j i

Secured: to the. inner pen engagin edge the aw 2, by gluing or cementing, sa

cushion strip, 20 of; rubber or other suitable material, providing ayielding grip surface;

' in Which the inserted pens are partially embedded to prevent lateral displacement and H to compensate for slightyvariations n pen,

Havingdescribed mylinvention', I claim:-

1. VA. .PQn clamp for ruling ;1 'na-chi1'1es eomprislng two clamp Jaws, a ser es of stir- Copies of this pa tent 'inay be obtained/ ter fic cents, eachi byi addr essing" the gborninli ssiener bi Patents;

saidfjaws forptforcing the sam'e apart,- a s required fori clamping and releasin gthe rul ries of stirrups oonnecting with one -j aw: ingpensbetWeen the jaws. The turning; of. thefscrew imparts motion to tll ipalts'ijnj repsegch pivotal ly connected to onecjaw' and extending and passing through the second rups nd saidsecondjaw for coupling saidfiS parts and When rocking imparting); a clampin'g pressure toboth of said jaws.

2.-A clamjpof the nature disclosed comprising twonjaws, a'series of spaced st-ilfrnps eaeh' wotally connected to one jaw, and exat one; end of one'of said jaws, j

3. 'A clamp of the nature"disclosed cornprising two jaws, one thelfeofhaving' astirrup anchoring rod recessed Within its inner surface," a series of spaced *stlr'rups each p 7 tending and passing throughthe second jaw, e a Wedgerod engaginglwith saidistirrups and second zjaw adaptedfwhen.[rocked to bring said jaws. together, and means [for rocking saidrod connecting tlierewitheindl mounted otallyenga ged with said anchoring rod and a 7 extending and passnllg throughthe secondjaw,' a rod member. extendinglongitudinally of said second cj aw Q,11g'&gTDg--.S&id}stiftllps c andadapted when rocked-toengage said sec-c 0nd j awlforforci11g said jmstogethenrand I means for rocking said [rode Ola-mp of the nature -disclosed:corn? pIlSlllg tWol aws, a 3611188 Of Stl1 1L1pS-'QQI'inectlng W1th}.one Jaw-"find extending and passing through the, second jaw a rod? 'ex ing; a tubular 'end hotch ed longitudinally,

end of 'one jaw, hiaving a p all end socketed intosaid tubular end of said arm.

prising two, 21' aWstensi n 5 means between extendin and passin hrough the secon jaw a rod extending longitudinally aid" second] areengag ngwrth saldgstlrrups.; said rod adapted: when.-rookedc:;to"force said 5.;A clamp offthe natur'eidisclosed com;

, together an arm I fixed on-one end o f; {said grod, havmg a,tubulaipend notched,iongi-V tudlnally and an adlust ng screw; mounted tending longitudinallyrof saidjsecond aw, 'e11 ;aging with said stiriiips, said rod d t. ed when rocked to force said jaws together-, mam fixed on one end ofsaid rod hai and an adjusting screwimountejd upon the upon' the end Of-mmj m havinga ba1l..en l v i socketed into sald,tubul-anend of saidarm.

f In Witness whereo-ffI hereunto subscribe myn'ame, as attested by-thetwosubscribing Wi n s BECK.

Washington, DIG? f "Gnonen VAu WORMEER. 7 

